We can provide debug_pagealloc_enabled() also if CONFIG_DEBUG_PAGEALLOC is not set. It will return false in that case. Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> --- include/linux/mm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 7783073..fbc5354 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2148,6 +2148,10 @@ kernel_map_pages(struct page *page, int numpages, int enable) extern bool kernel_page_present(struct page *page); #endif /* CONFIG_HIBERNATION */ #else +static inline bool debug_pagealloc_enabled(void) +{ + return false; +} static inline void kernel_map_pages(struct page *page, int numpages, int enable) {} #ifdef CONFIG_HIBERNATION -- 2.3.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>